
public class Demo1 {
	public static void main(String[] args) {
		int card1 = 10;
		int card2 = 8;
		int card3;
		card3 = card1;
		card1 = card2;
		card2 = card3;
		System.out.println("card1=" + card1 + "\ncard2=" + card2);
	}
}
